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Finding the Fourth Proportional to 24,854.40, 34,281.90 and 20,754.90

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Solution

The fourth proportional to 24,854.40, 34,281.90 and 20,754.90 is: 28,627.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,854.40 : 34,281.90 = 20,754.90 : x
  2. Step 2: Convert to fraction form
    24,854.40/34,281.90 = 20,754.90/x
  3. Step 3: Cross multiply
    24,854.40x = 34,281.90 × 20,754.90
  4. Step 4: Simplify right side
    24,854.40x = 711,517,406.31
  5. Step 5: Solve for x
    x = 711,517,406.31/24,854.40
  6. Step 6: Final answer
    x = 28,627.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.